Help to identify these rings.

[elpocho]

Hi Gentlemen,

I recently purchased a scope at a gun show, since the seller did not have the star like screwdeiver he gave me the rings that were attached to the scope. Thay are very solid so I was hoping to get bases for them but no luck identifying them in different gun shops. Hope that someone here might have seen this kind and knows what brand they night be.

Thanks in advance for any help

 

[9.3mauser]

Ruger, front extension, and look to be high as well.

 

[elpocho]

Thank you 9.3mauser for the info.